Question

helppp!!! confusion..
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Answer 1

u have \(f(x)=x^2+7\) and \(g(x)=\frac{x-4}{x}\) then
\[ \large (g\circ f)(-1)=g(f(-1))=g((-1)^2+7)= \]
\[ \large =g(8)=\frac{8-4}{8}=\frac{4}{8}=\frac{1}{2} \]
got it??